Display panel and display device

Abstract

A display panel and a display device. The display panel includes a first light adjusting module and a display module. The display module includes a pixel unit having a plurality of pixels, the pixels include a plurality of sub-pixels. The first light adjusting module includes a first light-adjusting electrode layer, a second light-adjusting electrode layer, a first filling layer and a second filling layer. The first filling layer is filled with a first filling material with a refractive index of ns, and the second filling layer is filled with filler groups each including at least one filler and corresponding to the pixels. The refractive index ne of the filler along the second direction is greater than the refractive index no along the third direction thereof, and ns≈no. The fillers in the same filler group switches between a first deflected state and a second deflected state.

What is claimed is: 
     
       1. A display panel, comprising:
 a first light adjusting module; and 
 a display module facing the first light adjusting module along a first direction, the display module comprising a pixel unit, the pixel unit having a plurality of pixels, and each one of the plurality of pixels comprising a plurality of sub-pixels; 
 
       wherein
 the first light adjusting module comprises a first light-adjusting electrode layer, a second light-adjusting electrode layer, a first filling layer and a second filling layer, the second filling layer is disposed on an incident side of the first filling layer, and the first light-adjusting electrode layer and the second light-adjusting electrode layer are respectively located on two sides of the second filling layer, the first filling layer is filled with a first filling material with a refractive index of ns, and the second filling layer is filled with a second filling material; 
 the second filling material comprises a plurality of filler groups, and one of the plurality of pixels corresponds to at least one of the plurality of filler groups, each one of the plurality of filler groups comprises at least one filler, and the filler has a refractive index of ne along a second direction, and a refractive index of no along a third direction, where ne>no, and ns≈no; 
 an electric field for switching a state of the filler in the plurality of filler groups corresponding to the plurality of pixels is formed between the first light-adjusting electrode layer and the second light-adjusting electrode layer, the state of the filler comprises at least a first deflected state and a second deflected state, the second direction of the filler coincides with a vibration direction of an incident light entering the second filling layer in a case that the filler is in the first deflected state, and the third direction of the filler coincides with the vibration direction of the incident light entering the second filling layer in a case that the filler is in the second deflected state; 
 the number of the plurality of filler groups corresponding to one of the plurality of pixels is the same as the number of the plurality of sub-pixels in the one of the plurality of pixels, namely each of the plurality of sub-pixels corresponds to one of the plurality of filler groups; and 
 the electric field formed between the first light-adjusting electrode layer and the second light-adjusting electrode layer is used for driving the filler in a respective one of the plurality of the filler groups to switch between the first deflected state and the second deflected state in a case that an activated state of one of the plurality of sub-pixels is changed. 
 
     
     
       2. The display panel according to  claim 1 , wherein the first filling material is formed with a plurality of accommodating grooves, and each one of the plurality of accommodating grooves is used for accommodating one of the plurality of filler groups. 
     
     
       3. The display panel according to  claim 2 , wherein the first light adjusting module is disposed on a light-exiting side of the display module, and the display panel further comprises a second light adjusting module disposed on an incident side of the display module, and the second light adjusting module is configured for adjusting a luminance of the light entering the display module. 
     
     
       4. The display panel according to  claim 1 , wherein a difference value between ne and no is in a range of 0.01-2, with a value of ne between 1.0 and 2.5, and a value of no between 1.0 and 2.5. 
     
     
       5. The display panel according to  claim 4 , wherein the first light adjusting module is disposed on a light-exiting side of the display module, and the display panel further comprises a second light adjusting module disposed on an incident side of the display module, and the second light adjusting module is configured for adjusting a luminance of the light entering the display module. 
     
     
       6. The display panel according to  claim 1 , wherein the first filling material is a polymer material, the second filling material is a nematic liquid-crystal-molecule material, and the filler is a liquid crystal molecule. 
     
     
       7. The display panel according to  claim 6 , wherein the first light adjusting module is disposed on a light-exiting side of the display module, and the display panel further comprises a second light adjusting module disposed on an incident side of the display module, and the second light adjusting module is configured for adjusting a luminance of the light entering the display module. 
     
     
       8. The display panel according to  claim 1 , wherein the first light adjusting module further comprises a first transparent substrate and a second transparent substrate, the first transparent substrate is located on a light-exiting side of the first light-adjusting electrode layer, and the second transparent substrate is located on an incident side of the second light-adjusting electrode layer. 
     
     
       9. The display panel according to  claim 8 , wherein the first light adjusting module is disposed on a light-exiting side of the display module, and the display panel further comprises a second light adjusting module disposed on an incident side of the display module, and the second light adjusting module is configured for adjusting a luminance of the light entering the display module. 
     
     
       10. The display panel according to  claim 1 , wherein the first light adjusting module is disposed on a light-exiting side of the display module, and the display panel further comprises a second light adjusting module disposed on an incident side of the display module, and the second light adjusting module is configured for adjusting a luminance of the light entering the display module. 
     
     
       11. A display device, comprising: a backlight source and the display panel according to  claim 1 ,
 wherein the backlight source is disposed on an incident side of the display panel, and the backlight source is a collimated light source. 
 
     
     
       12. The display device according to  claim 11 , wherein
 the backlight source comprises: a light source, an optical film, a light-guiding plate and a reflective sheet; 
 the optical film is located between the light-guiding plate and the display panel, the light source is disposed to a side of the light-guiding plate, and the reflective sheet is located on a side of the light-guiding plate facing away from the display panel; 
 a plurality of first V-shaped grooves arranged side by side are provided on a side of the light-guiding plate facing the optical film, and a plurality of second V-shaped grooves arranged side by side are provided on the side of the light-guiding plate facing the reflective sheet; and 
 the first V-shaped grooves are extended along a direction parallel to an emission direction of the light from the light source, and the second V-shaped grooves are extended along a direction perpendicular to the direction along which the first V-shaped grooves are extended. 
 
     
     
       13. A display panel, comprising:
 a first light adjusting module; and 
 a display module facing the first light adjusting module along a first direction, the display module comprising a pixel unit, the pixel unit having a plurality of pixels, and each one of the plurality of pixels comprising a plurality of sub-pixels; 
 
       wherein
 the first light adjusting module comprises a first light-adjusting electrode layer, a second light-adjusting electrode layer, a first filling layer and a second filling layer, the second filling layer is disposed on an incident side of the first filling layer, and the first light-adjusting electrode layer and the second light-adjusting electrode layer are respectively located on two sides of the second filling layer, the first filling layer is filled with a first filling material with a refractive index of ns, and the second filling layer is filled with a second filling material; 
 the second filling material comprises a plurality of filler groups, and one of the plurality of pixels corresponds to at least one of the plurality of filler groups, each one of the plurality of filler groups comprises at least one filler, and the filler has a refractive index of ne along a second direction, and a refractive index of no along a third direction, where ne>no, and ns≈no; 
 an electric field for switching a state of the filler in the plurality of filler groups corresponding to the plurality of pixels is formed between the first light-adjusting electrode layer and the second light-adjusting electrode layer, the state of the filler comprises at least a first deflected state and a second deflected state, the second direction of the filler coincides with a vibration direction of an incident light entering the second filling layer in a case that the filler is in the first deflected state, and the third direction of the filler coincides with the vibration direction of the incident light entering the second filling layer in a case that the filler is in the second deflected state; 
 the first light adjusting module is disposed on the incident side of the display module; 
 the display module comprises a first polarizing sheet and a second polarizing sheet; 
 the first light adjusting module comprises a third polarizing sheet; 
 the first polarizing sheet is positioned on a light-exiting side of the pixel unit, the second polarizing sheet is positioned on an incident side of the pixel unit, and the third polarizing sheet is positioned on an incident side of the second light-adjusting electrode layer; and 
 a transmission axis of the third polarizing sheet is orthogonal to a transmission axis of the second polarizing sheet. 
 
     
     
       14. The display panel according to  claim 13 , wherein the first filling material is formed with a plurality of accommodating grooves, and each one of the plurality of accommodating grooves is used for accommodating one of the plurality of filler groups. 
     
     
       15. The display panel according to  claim 13 , wherein a difference value between ne and no is in a range of 0.01-2, with a value of ne between 1.0 and 2.5, and a value of no between 1.0 and 2.5. 
     
     
       16. The display panel according to  claim 13 , wherein the first filling material is a polymer material, the second filling material is a nematic liquid-crystal-molecule material, and the filler is a liquid crystal molecule. 
     
     
       17. The display panel according to  claim 13 , wherein the first light adjusting module further comprises a first transparent substrate and a second transparent substrate, the first transparent substrate is located on a light-exiting side of the first light-adjusting electrode layer, and the second transparent substrate is located on an incident side of the second light-adjusting electrode layer. 
     
     
       18. The display panel according to  claim 13 , wherein the number of the plurality of filler groups corresponding to one of the plurality of pixels is the same as the number of the plurality of sub-pixels in the one of the plurality of pixels, namely each of the plurality of sub-pixels corresponds to one of the plurality of filler groups; and
 the electric field formed between the first light-adjusting electrode layer and the second light-adjusting electrode layer is used for driving the filler in a respective one of the plurality of the filler groups to switch between the first deflected state and the second deflected state in a case that an activated state of one of the plurality of sub-pixels is changed.